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10019213 = 19527327
BaseRepresentation
bin100110001110…
…000110001101
3200212000202222
4212032012031
510031103323
6554425125
7151106351
oct46160615
920760688
1010019213
115723646
1234321a5
1320ca539
14148b461
15d2d9c8
hex98e18d

10019213 has 4 divisors (see below), whose sum is σ = 10546560. Its totient is φ = 9491868.

The previous prime is 10019197. The next prime is 10019249. The reversal of 10019213 is 31291001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31291001 = 74470143.

It is not a de Polignac number, because 10019213 - 24 = 10019197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10019191 and 10019200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10019263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263645 + ... + 263682.

It is an arithmetic number, because the mean of its divisors is an integer number (2636640).

Almost surely, 210019213 is an apocalyptic number.

It is an amenable number.

10019213 is a deficient number, since it is larger than the sum of its proper divisors (527347).

10019213 is an equidigital number, since it uses as much as digits as its factorization.

10019213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527346.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 10019213 is about 3165.3140444512. The cubic root of 10019213 is about 215.5813579112.

The spelling of 10019213 in words is "ten million, nineteen thousand, two hundred thirteen".

Divisors: 1 19 527327 10019213